Tetraethylammonium nitrate

C6H5.CH(0N02).CH(N02).C6HB mw 288.25, N 9.72% crysts (from petr eth), mp 165—66° (dec) was obtd by action of dinitrogen pentoxide (N2Ob) methylene chloride on trans-stilbene in tetraethylammonium nitrate at minus 20° for 15 mins (Ref 2)... 

Fig. 6-26. Analysis of polyphosphoric acid upon application of DC plasma detection. - Separator column 150 mm x 4.1 mm I.D. PRP-1 eluent (A) 0.01 mol/L tetraethylammonium nitrate (pH 9), (B) 0.01 mol/L tetraethylammonium nitrate + 0.1 mol/L KN03 (pH 9.0) gradient linear, 1% B to 40% B in 18 min flow rate 1.2 mL/min detection DC plasma emission wavelength 214.9 nm injection 20 pL of a solution with ca. 60 pg P external standard 8.24 pg P as orthophosphate (taken from [52]).

All these data refer to the molar scale with the exception of Buckley and Hartley s work which is based on the molal scale. Luehrs et alP made their measurements at 23°C in a constant ionic strength medium of l.OM LiC104 and Parker and co-workers ° employed 0.0IM tetraethylammonium nitrate (Et N-NOa) at 25°C. With the exception of Koch s work, there seems to be fairly good agreement between the various 50 values and it is of interest to calculate the value for the Ag" I Ag couple using eqn. 2.6.40. 

Addition of dimethylsulfoxide to a solution produced by electrochemical oxidation of thorium in nitric acid-tributylphosphate yields Th(N03)4-6dmso whilst addition of 2,2 -bipyri-dine or 1,10-phenanthroUne in ethanol yields, respectively, [(bpyH)3N03][Th(N03)6] and [(phenH)3N03][Th(N03)e]. The hexanitrato complex [N(C2H5)4]2[Th(N03)6] is obtained by addition of a solution of tetraethylammonium nitrate in ethanol [3]. 

Fig. 7-51. Analysis of polyphosphoric acid upon application of DC plasma detection. - Separator column 150 mm X 4.1 mm i.d. PRP-1 eluant (A) 10 mmol/L tetraethylammonium nitrate (pH 9),...

A nice example of a degenerate rearrangement has been reported for the complex pentacarbonyltungsten(0)-thioaldehyde-l,2-dithiol 177 (R = H) or the thioketone-1,2-dithiol complex 177 (R = CH3). These compounds (obtained by the reaction of silver nitrate with tetraethylammonium pentacar-bonyliodotungstate(O) in the presence of l,6,6 z -trithiapentalenes) appeared to exist as an equilibrium mixture of the two isomers 177/178 (Scheme IV.70) [83JCS(CC)289]. The symmetrically substituted 1,2-dithiol (R = CH3, R = H) displays fluxional behavior as appears by NMR spectroscopy... 

Ci4H2oNioNiOg, Nickel(ll), diaquabis(bis(l-pyrazolyl)methane)-, nitrate, 34 139 C14H20NO6V, Vanadate(l-), hexacarbonyl-, tetraethylammonium, 34 98 C14H22RU, Ruthenium, bis(7) -2,4-dimethylpen-tadienyl)-, 34 61... 

The Al-containing Ti-beta sample, TB-1, was synthesized according to the methods proposed by Camblor et al. [4], Aerosil 200 (Degussa), titanium ethoxide. tetraethylammonium (TEAOH 40 wt%, Alfa), and aluminum nitrate nonahydrate were used as reagents. The ratios Si/Ti and Si/Al were adjusted as needed. 

Complexes with cyanate were prepared [143] by reaction of anhydrous lanthanide chlorides with an excess of tetraethylammonium cyanate in absolute ethanol. The complex has the formula [(C2H5)4N]3Ln(NCO)6, where Ln = Eu, Gd, Dy, Ho, Er, and Yb and they are indicated to be six-coordinate and cyanate is N-bonded as evidenced by IR spectra [147]. Mixed complexes [(C2H5)4N]3[Ln(NCO)3X3], where Ln = Dy, Er and Yb and X = C1, NCS have been synthesized and they appear to be of six-coordinate [144]. Mixed complexes of the type [(C2H5)4N]3[Ln(NC0)3(N03)3], where Ln = La, Pr, Nd, Sm, Eu, Gd, Er and Yb have been synthesized and the IR spectra shows N-bonded cyanate, bidentate nitrate and the overall coordination number amounting to nine [145]. 

Reaction of AlBrs with N2O5 produces white hygroscopic crystals of the salt [N02] [A1(N03)4]. The [A1(N03)4] anion (22) may also be obtained as the alkali metal or tetraethylammonium salts by the reaction of the appropriate nitrate salt, nitric acid, or N2O5 with AlBrs. Use of an excess of metal nitrate affords the [A1(N03)5] anion (23). 

For measurements on mixed salts, tetraethylammonium chloride solution was required. It was prepared by grinding the quaternary base iodide with an excess of silver chloride and some water, filtering, diluting and standardizing by silver nitrate titration. The design of the potentiometer circuit was derived from Penick, o whose method of adjustment was also used. This circuit was very sensitive to changes of external electric fields, and the thermostat, which contained the cell, had to be stirred by water circulated by a rotary pump, placed at some distance from the thermostat. 

Aruga [78ARU] made calorimetric titrations of 0.17 M zinc nitrate solution with 0.17 M tetraethylammonium selenate, see Appendix A. The concentration of ZnSe04(aq) formed was calculated with the equilibrium constant determined in [34BAN] corrected to / = 0.5 M by Davies equation. After experimentally determined corrections for heats of dilution had been applied, the enthalpy change of Reaction (V.80) was calculated to be A //, ((V.80), / = 0.5 M, 298.15 K) = (0.20 0.05) kJ-moP. The recalculation of the equilibrium constant to / = 0.5 M is uncertain. The uncertainty assigned by the author to A,//° has therefore been increased to include the uncertainty in the value of the equilibrium constant. 

Aruga [78ARU] made calorimetric titrations of 0.17 M cadmium nitrate solution with 0.17 M tetraethylammonium selenate, see Appendix A. The evaluation of the experiment was made as described for zinc in Section V.9.1.3. The selected result is ... 

Cobalt (II) acetate tetrahydrate, Cobalt (II) nitrate hexahydrate, cobalt chloride, sodium aluminate (Na2O.Al2O3.3H2O), boric acid (H3BO3) and tetraethylammonium hydroxide (Aldrich), acetic acid purex and cyclohexane for analysis (SDS) were used as received. Ludox HS-40 colloidal silica solution was obtained from Dupont. Zeolites BEA 15 and BEA 27 were synthesized in the presence of tetraethylammonium hydroxide (TEAOH) according to the procedure described by Wadlinger and al. [14]. Dealuminated BEA 1100 was obtained by treating BEA 15 with concentrated nitric acid [15],... 

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